Santa's List

package com.company;

import java.util.*;
import java.util.stream.Collectors;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        List<String> names = Arrays.stream(scanner.nextLine().split("&"))
                .collect(Collectors.toList());

        List<String> commands = Arrays.stream(scanner.nextLine().split(" "))
                .collect(Collectors.toList());

        System.out.println();
        while (!commands.contains("Finished!")) {
            String newName = commands.get(commands.size() - 1);
            String command = commands.get(0);
            String name = commands.get(1);

            switch (command) {

                case "Bad":


                    if (names.contains(name)) {
                        break;

                    }else {
                        names.add(0, name);
                    }
                     break;
                case "Good":
                    if (names.contains(name)) {
                        names.remove(name);


                    }
                     break;
                case "Rename":
                    if (names.contains(name)) {
                        names.set(names.indexOf(name), newName);
                    }

                     break;
                case "Rearrange":
                    if (names.contains(name)) {
                        names.remove(name);
                        names.add(name);
                    }
                     break;



            }

            commands = Arrays.stream(scanner.nextLine().split(" "))
                    .collect(Collectors.toList());


        }

        if (commands.contains("Finished!")) {
            System.out.println(String.join(", ", names).trim());
        }
    }
}